The first step would be to stop calling them Depositors. They are not and were never Depositors. That is what you have deposit boxes for...You do not have money at the Bank. You loaned money to the Bank. That is why they pay you interest on it...
Amazing the IMF has a misconception of how banks work in their “basics” explanation!
From the Bank of England: “[…] Where the stock of bank deposits comes from is often misunderstood. One common misconception is that banks act simply as intermediaries, lending out the deposits that savers place with them.”
"...Transactions on deposit accounts are recorded in a bank's books, and the resulting balance is recorded as a liability of the bank and represents an amount owed by the bank to the customer..."
"...At the moment of deposit, the funds become the property of the depository bank...Thus, as a depositor, you are in essence a creditor of the bank. Once the bank accepts your deposit, it agrees to refund the same amount, or any part thereof, on demand..."
And your confusion is completely normal. An insidious action expressly used by the interested, in manipulating language for it's purposes. It has already been nicely addressed by Weinberg in his books.
That is why every dry desert urban development in the middle of nowhere, with hardly any water for hundreds of miles, is called... Watery Creek...That is why employees are sometimes called business partners, that is why private investments funds are in some countries called pensions, and finally the reason why creditors at banks are called depositors. To delude you into making you believe, you are or have more, than what you really are, or might have.
Sounds like this commenter is not just arguing that language is being used incorrectly in this situation, but that the standard language and definitions are themselves propaganda terms.
(Usually people are a little clearer about their intent to argue that.)
The value of the interest is not relevant to the truthiness of the concept. And zero is still a number, although some mathematicians might not agree...
Yes in the world of Finance, but the word has a different meaning, in the mind of said Depositors...The word is used by Government and Banks, as a misdirection into a false sense of security.